Like corkscrew light bulbs, there are newly designed sprinkler heads that reduce the amount of water a lawn needs. Instead of shooting a spray that blows away with the wind or, these new rotary sprinkler nozzles shoot streams of water. The water does a better job of staying in your yard and on your grass. You can reduce your watering bill by up to 30% if you install these rotary sprinkler nozzles in your yard. They are available through local retailers at a cost of $6 to $8 each, and you can change them out yourself or hire a local contractor. Click here to find a certified contractor.